Internet Archive Search: subject:"Cerebrospinal fluid"

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NASA Technical Documents

177 177

WHAT EFFECT DOES THE WARNING OF REACTIONS HAVE ON THE REACTION TIME

Jul 11, 2010 07/10

by AMELANG, M.; LASOGGA, F

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COMPLEX REACTION TIME EXPERIMENTS WERE DONE WITH INFORMATION SIGNALS INDICATING WHICH REACTION WOULD BE REQUIRED IN CHOICE EXPERIMENTS. REACTION TIMES DECREASED WITH INCREASING INTERVAL BETWEEN INFORMATION AND STARTING SIGNALS, BUT WERE NEVER SHORTER THAN REACTION TIMES IN SIMPLE REACTION TIME EXPERIMENTS. LONGER EXPOSURE OF THE INFORMATION SIGNAL GAVE LONGER REACTION TIME. IN OTHER EXPERIMENTS IN WHICH INTERRUPTION SIGNALS WERE GIVEN SIMULTANEOUSLY WITH THE START SIGNALS, REACTION TIMES WERE...
Topics: CEREBROSPINAL FLUID, SURGERY, CLINICAL MEDICINE, HYPOTENSION, INTRACRANIAL PRESSURE, ANATOMY, BODY...

American Libraries

602 602

American Journal of Physiology

Feb 20, 2009 02/09

by American Physiological Society (1887- )

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Book digitized by Google and uploaded to the Internet Archive by user tpb.
Topics: fluid, blood, pressure, venous, arterial, experiments, injection, plasma, cent, rise, venous...
Source: http://books.google.com/books?id=kZ0EAAAAYAAJ&oe=UTF-8

European Libraries

166 166

Physiological reviews

Nov 16, 2014 11/14

by American Physiological Society (1887- )

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Topics: blood, cells, acid, creatine, bile, thyroid, fat, tissue, cerebrospinal fluid, lactic acid, uric...
Source: http://books.google.com/books?id=6YkVAAAAYAAJ&hl=&source=gbs_api

American Libraries

898 898

American Journal of Physiology

Feb 20, 2009 02/09

by American Physiological Society (1887- )

eye 898

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Book digitized by Google and uploaded to the Internet Archive by user tpb.
Topics: blood, dbygoogic, experiments, pressure, normal, gastric, fluid, injection, stimulation, thyroid,...
Source: http://books.google.com/books?id=TZ8EAAAAYAAJ&oe=UTF-8

Royal College of Surgeons of England

55 55

Das Wasser der Nerven in physiologischer und pathologischer Beziehung

Aug 18, 2015 08/15

by Birkner, Gottlieb; Royal College of Surgeons of England

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The Royal College of Surgeons of England
Topic: Cerebrospinal Fluid

University of Toronto - Gerstein Science Information Centre

838 838

Physiology and pathology of the cerebrospinal fluid

Mar 24, 2008 03/08

by Boyd, William, 1885-

eye 838

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14
Topic: Cerebrospinal fluid

University of Alberta Libraries - The CIHM Monograph Collection

268 268

Physiology and pathology of the cerebrospinal fluid [microform]

Sep 21, 2012 09/12

by Boyd, William, 1885-1979

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Includes bibliographical references and an index
Topics: Cerebrospinal fluid, Liquide céphalorachidien

University of Alberta Libraries - The CIHM Monograph Collection

345 345

A report on cerebro-spinal pathology [microform]

Apr 2, 2009 04/09

by Clark, Daniel, 1835-1912

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"Read at the annual meeting of the Association of Superintendents of American Institutions for the Insane, held at Newport, R.I., June 26, 1883"--p. [1]
Topics: Cerebrospinal fluid, Brain chemistry, Céphalo-rachidien, Liquide, Cerveau

Community Texts

146 146

marcosstory

Apr 16, 2010 04/10

by cohenjoshua@rocketmail.com

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BACKGROUND ... Marco's story is about a gay Quebecois and mentally challenged (and/or or mentally special/exotic as he preferred to call himself) trying to find acceptance. Instead, Marco found rejection from those around him, except for the rare few who understood what he stood for; and simply they were principles of supporting small businesses, ecological responsibility (i.e., reuse, reduce and recycle), promoting French culture and its language, as well as human rights and dignity,...
( 1 reviews )
Topics: headaches, migraines, spinal headaches, abdominal pains, generalized body stiffness, medical...

Community Texts

169 169

TheMarcoStory

Apr 16, 2010 04/10

by cohenjoshua@rocketmail.com

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BACKGROUND ... Marco's story is about a gay Quebecois and mentally challenged (and/or or mentally special/exotic as he preferred to call himself) trying to find acceptance. Instead, Marco found rejection from those around him, except for the rare few who understood what he stood for; and simply they were principles of supporting small businesses, ecological responsibility (i.e., reuse, reduce and recycle), promoting French culture and its language, as well as human rights and dignity,...
Topics: headaches, migraines, spinal headaches, abdominal pains, generalized body stiffness, medical...

Royal College of Surgeons of England

41 41

Ricerche chimiche sul liquido idrocefalico dei bambini e della sua azione di fronte ad alcuni batteri patogeni

Aug 18, 2015 08/15

by Concetti, Luigi, 1854-1920; Royal College of Surgeons of England

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The Royal College of Surgeons of England
Topics: Child, Cerebrospinal Fluid

The Medical Heritage Library

271 271

Dominici Cotunnii ... De ischiade nervosa commentarius

Jul 1, 2011 07/11

by Cotugno, Domenico, 1736-1822

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Title vignette; head- and tailpieces; initials
Topics: Cerebrospinal fluid, Sciatica, Cerebrospinal Fluid, Sciatica

The Medical Heritage Library

237 237

A treatise on the nervous sciatica, or, Nervous hip gout

Jul 1, 2011 07/11

by Cotugno, Domenico, 1736-1822

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Includes bibliographical references
Topics: Cerebrospinal fluid, Sciatica, Cerebrospinal Fluid, Sciatica

Defense Technical Information Archive

5 5.0

DTIC ADA049857: Pulmonary Adaptation to High Altitude

Jan 28, 2017 01/17

by Defense Technical Information Center

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This project is aimed at two closely related problems concerning man's adaptation to high altitude hypoxia: (1) The mechanisms which regulate the ionic composition of brain intra- and extra-cellular fluid ICF/ECF in long- term hypoxia, and (2) The role these regulatory factors play in mediating ventilatory acclimatization to hypoxia. In studies of brain ECF in hypoxia the writer has determined the regulation of CSF HCO3(-) movement between plasma and CSF, described the effects of hypoxia on...
Topics: DTIC Archive, Dempsey, Jerome A, WISCONSIN UNIV MADISON, *ADAPTATION(PHYSIOLOGY), *BRAIN, *HYPOXIA,...

Defense Technical Information Archive

28 28

DTIC ADA018833: Rifampin Concentrations in Cerebrospinal Fluid of Patients with Tuberculous Meningitis

Nov 3, 2015 11/15

by Defense Technical Information Center

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Rifampin was administered orally in one dose of 25 mg per kg of body weight to 6 patients with tuberculous meningitis who had received no previous antituberculous chemotherapy and to 7 control subjects. There was no sigificant difference in rifampin absorption at 3 hours between patients and control subjects; however, no rifampin could be detected in the 3-hour cerebrospinal fluid (CSF) specimens taken from control subjects. Significant concentrations were reached in patients' CSF within 3...
Topics: DTIC Archive, Sippel, John E., Mikhail, Isis A., Girgis, Nabil I., Youssef, Hassan H., NAVAL...

Defense Technical Information Archive

9 9.0

DTIC ADA043729: On the Validity of CSF (H+) as a Mediator of Man's Ventilatory Adaptation to Hypoxia.

Dec 16, 2016 12/16

by Defense Technical Information Center

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The central questions of this report were concerned with testing widely held theories concerning the mechanisms regulating the acid-base status of cerebrospinal fluid (CSF) and the role of this acid-base status as a mediator of ventilatory acclimatization to chronic hypobaric hypoxia (high altitudes). We have tested the regulation of CSF pH in healthy men, ponies while awake and dogs while anesthetized during 10 hours to 3 weeks of hypoxia and/or hypocapnia and found consistently that CSF pH is...
Topics: DTIC Archive, Dempsey,J A, WISCONSIN UNIV MADISON DEPT OF PREVENTIVE MEDICINE, *HYPOXIA,...

Defense Technical Information Archive

32 32

DTIC ADA033823: Pneumococcal Meningitis in a Rhesus Monkey.

Nov 25, 2015 11/15

by Defense Technical Information Center

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A recently acquired young, 2.8-kg male rhesus monkey (Macaca mulatta) demonstrated a peculiar behavioral pattern, depression, and anorexia. Approximately 40 hr later, hyperestheisa, generalized muscle tremors, ataxia, and nystagmus became apparent. Cerebrospinal fluid contained numerous gram-positive cocci; subsequently, pure cultures of Streptococcus (Diplococcus) pneumoniae were isolated. Extensive antibiotic and supportive treatment for pneumococcal meningitis was administrated for 12 da....
Topics: DTIC Archive, Faulkner,Roy T, Burger,Gary T, Harrington,Donald G, Hickman,Robert L, ARMY MEDICAL...

Defense Technical Information Archive

12 12

DTIC ADA042845: Biochemical Analysis of Cerebrospinal Fluid in Response to Drug Administration.

Dec 1, 2016 12/16

by Defense Technical Information Center

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Using dogs, it was found that d-amphetamine (3 mg/kg i.v.) produces a threefold increase in CSF levels of the norepinephrine metabolite MHPG. L-amphetamine at the same dosage level produced either no change in MHPG or had a relatively smaller effect. Cerebral blood flow increased threefold with d-amphetamine at 3 mg/kg in dogs, and only slightly after the 1-isomer at the same dose. Arterial pressure doubled after d-amphetamine (3 mg/kg) and only increased 20-30% after the 1-isomer at the same...
Topics: DTIC Archive, Burns,Barry, JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF ENVIRONMENTAL MEDICINE, *DRUG...

Defense Technical Information Archive

6 6.0

DTIC ADA044287: Guidelines for Handling and Shipping 'Neisseria meningitidis' from CF Hospitals to Defence Research Establishment Suffield (DRES). Revised.

Dec 18, 2016 12/16

by Defense Technical Information Center

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Instructions are presented to ensure the transport of Neisseria meningitidis in viable state from remote sites to a diagnostic laboratory. Precautions are outlined which are necessary to prevent the accidental release of pathogenic material during shipment. In addition, instructions are provided for the handling of initial isolate material (e.g. on swabs or in cerebrospinal fluid (CSF)). The described shipping procedures are in accordance with IATA Packing Notes for Passenger and Cargo...
Topics: DTIC Archive, Spence,M R, DEFENCE RESEARCH ESTABLISHMENT SUFFIELD RALSTON (ALBERTA), *PATHOGENIC...

Defense Technical Information Archive

3 3.0

DTIC ADA055958: Biochemical Analysis of Cerebrospinal Fluid Changes in Response to Drug Administration.

Jun 6, 2017 06/17

by Defense Technical Information Center

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The objectives of this study were to quantify the cerebrospinal fluid (CSF) biochemical changes in response to drug administration in rhesus monkeys. CSF was collected at hourly intervals over a period of neurotransmitter metabolites HMPG, HVA and the nucleotides C-AMP and C-GMP. Drug administration caused changes in the measured parameters. (Author)
Topics: DTIC Archive, Burns,Barry, JOHNS HOPKINS UNIV BALTIMORE MD, *CEREBROSPINAL FLUID, MEASUREMENT,...

Defense Technical Information Archive

14 14

DTIC ADA041231: In Vivo Metabolism of Adrenocortical Steroids: Cerebrospinal Fluid Ions and Neuro-transmitters as Modifiers of the Hypothalamic-Hypophyseal-Adrenocortical System.

Nov 27, 2016 11/16

by Defense Technical Information Center

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The present study was designed to investigate whether alterations, within physiological ranges, in the concentrations of various CSF cations (e.g., Na+, K+, Ca2+, Mg2+) could affect the basal activity of the HHA system directly or through their actions on neurotransmitters which are known to modulate the activity of the hypophysiotropic area. Adult male and female cats were prepared with left lateral cerebroventricular and right atrial cannulae. These studies demonstrated that although elevated...
Topics: DTIC Archive, Marotta,S F, ILLINOIS UNIV AT THE MEDICAL CENTER CHICAGO RESEARCH RESOURCES CENTER,...

University of Florida - Retrospective Dissertation Scanning Project

153 153

Autonomic influences on the production of cerebrospinal fluid

Aug 2, 2011 08/11

by Haywood, Joseph Roscoe

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http://uf.catalog.fcla.edu/uf.jsp?st=UF030251003&ix=nu&I=0&V=D&pm=1
Topics: Cerebrospinal Fluid, Autonomic Agents.

Daisy Books for the Print Disabled

29 29

Borrow

Zirkumventrikuläre Organe und Liquor. Bericht über das Symposium in Schloss Reinhardsbrunn vom 13.-16. Mai 1968. Hrsg. von Günther Sterba

Mar 7, 2012 03/12

by Internationales Symposium "Circumventriculäre Organe und Liquor" (1968 : Schloss Reinhardsbrunn); Sterba, Günther

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Text and summaries in German and English
Topics: Neurology, Cerebrospinal Fluid, Zoology

Daisy Books for the Print Disabled

21 21

Borrow

Hydrodynamik, Elektrolyt- und Säure-Basen-Haushalt im Liquor und Nervensystem. Symposion vom 27. 2.-1. 3. 1967 in der Neurologischen Klinik des Krankenhauses Nordwest, Frankfurt a.M

Mar 6, 2012 03/12

by Kienle, Gerhard, ed; Frankfurt am Main (Germany). Krankenhaus Nordwest. Neurologische Klinik

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Includes bibliographies
Topics: Cerebrospinal fluid, Acid-base equilibrium, Neurology

California Digital Library

1,046 1.0K

Cerebrospinal fluid in health and in disease

May 17, 2007 05/07

by Levinson, Abraham, 1886-

eye 1,046

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Topic: Cerebrospinal Fluid

Cornell University Library

661 661

Cerebrospinal fluid in health and in disease

Oct 31, 2009 10/09

by Levinson, Abraham, 1886-

eye 661

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The metadata below describe the original scanning. Follow the "All Files: HTTP" link in the "View the book" box to the left to find XML files that contain more metadata about the original images and the derived formats (OCR results, PDF etc.). See also the What is the directory structure for the texts? FAQ for information about file content and naming conventions.
Topic: Cerebrospinal fluid

University of Toronto - Gerstein Science Information Centre

864 864

Cerebrospinal fluid in health and in disease

Mar 24, 2008 03/08

by Levinson, Abraham, 1888-1955

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Includes bibliographies and index
Topic: Cerebrospinal fluid -- Examination

UCL Library Services, University College London (UCL)

222 222

Le liquide cephalo-rachidien normal et patholgique [electronic resource]

Sep 22, 2014 09/14

by Mestrezat, W; University College, London. Library Services

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This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)
Topic: Cerebrospinal Fluid

Royal College of Surgeons of England

35 35

Contribution à l'étude des dissociations albumino-cytologiques du liquide céphalo-rachidien : thèse présentée et publiquement soutenue à la Faculté de médecine de Montpellier le 25 juillet 1913

Nov 25, 2015 11/15

by Milhau, Edmond, 1889-; Royal College of Surgeons of England

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Index bibliographique: p. [46]-47
Topic: Cerebrospinal Fluid

Royal College of Surgeons of England

33 33

The physiological action of choline and neurine

Apr 7, 2016 04/16

by Mott, Frederick Walker, 1853-1926; Halliburton, W. D. (William Dobinson), 1860-1931; Royal College of Surgeons of England

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'Philosophical Transactions of the Royal Society of London, Series B, Vol. 191' - cover
Topics: Neurodegenerative Disorders, cerebrospinal fluid, Choline

NASA Network Resource and Training Site

9 9.0

NASA Technical Reports Server (NTRS) 20140016929: Lumped Parameter Models of the Central Nervous System for VIIP Research

Nov 17, 2016 11/16

by NASA Technical Reports Server (NTRS)

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INTRODUCTION: Current long-duration missions to the International Space Station and future exploration-class missions beyond low-Earth orbit, such as to Mars and asteroids, expose astronauts to increased risk of Visual Impairment and Intracranial Pressure (VIIP) syndrome [1]. It has been hypothesized that the headward shift of cerebral spinal fluid (CSF) and blood in microgravity may cause significant elevation of intracranial pressure (ICP), which in turn induces VIIP syndrome through...
Topics: NASA Technical Reports Server (NTRS), CENTRAL NERVOUS SYSTEM, LUMPED PARAMETER SYSTEMS, SPACE...

NASA Network Resource and Training Site

7 7.0

NASA Technical Reports Server (NTRS) 19840015027: Method of making an ion beam sputter-etched ventricular catheter for hydrocephalus shunt

Aug 22, 2016 08/16

by NASA Technical Reports Server (NTRS)

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The centricular catheter comprises a multiplicity of inlet microtubules. Each microtubule has both a large opening at its inlet end and a multiplicity of microscopic openings along its lateral surfaces. The microtubules are perforated by an ion beam sputter etch technique. The holes are etched in each microtubule by directing an ion beam through an electro formed mesh mask producing perforations having diameters ranging from about 14 microns to about 150 microns. This structure assures a...
Topics: NASA Technical Reports Server (NTRS), BYPASSES, CATHETERIZATION, CEREBROSPINAL FLUID, ETCHING, ION...

NASA Network Resource and Training Site

13 13

NASA Technical Reports Server (NTRS) 20080004031: Non-invasive method of measuring cerebral spinal fluid pressure

Oct 18, 2016 10/16

by NASA Technical Reports Server (NTRS)

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The invention provides a method of non-invasively determining intracranial pressure from measurements of an eye. A parameter of an optic nerve of the eye is determined, along with an intraocular pressure of the eye. The intracranial pressure may be determined from the intraocular pressure and the parameter.
Topics: NASA Technical Reports Server (NTRS), CEREBROSPINAL FLUID, EYE (ANATOMY), INTRACRANIAL PRESSURE,...

NASA Network Resource and Training Site

13 13

NASA Technical Reports Server (NTRS) 19920005368: Pharmacological and neurophysiological aspects of space/motion sickness

Sep 27, 2016 09/16

by NASA Technical Reports Server (NTRS)

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A motorized motion testing device modeled after a Ferris wheel was constructed to perform motion sickness tests on cats. Details of the testing are presented, and some of the topics covered include the following: xylazine-induced emesis; analysis of the constituents of the cerebrospinal fluid (CSF) during motion sickness; evaluation of serotonin-1A (5-HT sub 1A) agonists; other 5HT receptors; antimuscarinic mechanisms; and antihistaminergic mechanisms. The ability of the following drugs to...
Topics: NASA Technical Reports Server (NTRS), AEROSPACE MEDICINE, CATS, MOTION SICKNESS, MOTION SICKNESS...

NASA Network Resource and Training Site

5 5.0

NASA Technical Reports Server (NTRS) 20090002651: Assessing blood brain barrier dynamics or identifying or measuring selected substances, including ethanol or toxins, in a subject by analyzing Raman spectrum signals

Nov 3, 2016 11/16

by NASA Technical Reports Server (NTRS)

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A non-invasive method for analyzing the blood-brain barrier includes obtaining a Raman spectrum of a selected portion of the eye and monitoring the Raman spectrum to ascertain a change to the dynamics of the blood brain barrier.Also, non-invasive methods for determining the brain or blood level of an analyte of interest, such as glucose, drugs, alcohol, poisons, and the like, comprises: generating an excitation laser beam at a selected wavelength (e.g., at a wavelength of about 400 to 900...
Topics: NASA Technical Reports Server (NTRS), BLOOD-BRAIN BARRIER, RAMAN SPECTRA, ETHYL ALCOHOL, TOXINS AND...

NASA Network Resource and Training Site

5 5.0

NASA Technical Reports Server (NTRS) 19830017077: Research efforts

Aug 18, 2016 08/16

by NASA Technical Reports Server (NTRS)

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Conjugated catecholamines, deconjugation of catecholamines in cerbrospinal fluid or urine, the relationship of plasma norepinephrine to levels of severe stress, and catecholamine clearance rates are discussed.
Topics: NASA Technical Reports Server (NTRS), CATECHOLAMINE, CEREBROSPINAL FLUID, CONJUGATION, CONJUGATES,...

NASA Network Resource and Training Site

6 6.0

NASA Technical Reports Server (NTRS) 19830013514: Ion beam sputter-etched ventricular catheter for hydrocephalus shunt

Aug 17, 2016 08/16

by NASA Technical Reports Server (NTRS)

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A cerebrospinal fluid shunt in the form of a ventricular catheter for controlling the condition of hydrocephalus by relieving the excessive cerebrospinal fluid pressure is described. A method for fabrication of the catheter and shunting the cerebral fluid from the cerebral ventricles to other areas of the body is also considered. Shunt flow failure occurs if the ventricle collapse due to improper valve function causing overdrainage. The ventricular catheter comprises a multiplicity of inlet...
Topics: NASA Technical Reports Server (NTRS), CATHETERIZATION, CEREBROSPINAL FLUID, MEDICAL EQUIPMENT,...

NASA Network Resource and Training Site

5 5.0

NASA Technical Reports Server (NTRS) 20110012449: Risk of Microgravity-Induced Visual Impairment and Elevated Intracranial Pressure (VIIP)

Nov 8, 2016 11/16

by NASA Technical Reports Server (NTRS)

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Eight cases identified, represent 23.5% of the 34 crewmembers flown on the ISS, with inflight visual changes and pre-to-postflight refractive changes. In some cases, the changes were transient while in others they are persistent with varying degrees of visual impairment. (1) Decreased intraocular pressure (IOP) postflight was observed in 3 cases. (2) Fundoscopic exams revealed postflight findings of choroidal folds in 4 cases, optic disc edema in 5 cases and presence of cotton wool spots in 3...
Topics: NASA Technical Reports Server (NTRS), CEREBROSPINAL FLUID, ETIOLOGY, FLUID SHIFTS (BIOLOGY),...

NASA Network Resource and Training Site

9 9.0

NASA Technical Reports Server (NTRS) 19940006573: Effects of CSF hormones and ionic composition on salt/water metabolism

Oct 1, 2016 10/16

by NASA Technical Reports Server (NTRS)

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The consequences of headward fluid shifts during manned spaceflight was studied. Such shifts were recognized early by both U.S. and Soviet scientists because of signs and symptoms referable to the head. Some of these include disturbed vision, puffiness in the face and periorbital areas, headache, vestibular dysfunction, and distended jugular veins. We posited that the fluid shift had an immediate effect on the brain and a long-term action requiring a neural interpretation of the flight...
Topics: NASA Technical Reports Server (NTRS), CEREBROSPINAL FLUID, HUMAN REACTIONS, MANNED SPACE FLIGHT,...

NASA Network Resource and Training Site

7 7.0

NASA Technical Reports Server (NTRS) 19940007533: Hormonal regulation of fluid and electrolyte metabolism during periods of headward fluid shifts

Sep 27, 2016 09/16

by NASA Technical Reports Server (NTRS)

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In the broadest sense, this project evaluates how spaceflight induced shifts of blood and interstitial fluids into the thorax affect regulation by the central nervous system (CNS) of fluid-electrolyte hormone secretion. Specifically, it focuses on the role of hormones related to salt/water balance and their potential function in the control of intracranial pressure and cerebrospinal fluid (CSF) composition. Fluid-electrolyte status during spaceflight gradually equilibrates, with a reduction in...
Topics: NASA Technical Reports Server (NTRS), BLOOD, BLOOD FLOW, BLOOD VOLUME, CARDIOVASCULAR SYSTEM,...

NASA Network Resource and Training Site

5 5.0

NASA Technical Reports Server (NTRS) 20110014512: Computational Models of the Eye and their Applications in Long Duration Space Flight

Nov 7, 2016 11/16

by NASA Technical Reports Server (NTRS)

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Astronauts are exposed to cephalad fluid shift, increased carbon dioxide levels and other environmental factors during space flight. As a result of these conditions, it is believed that they are at risk of developing increased intracranial pressure (ICP) and intraocular pressure (IOP), which in turn may cause papilledema and other disorders of the eye that can lead to temporary or permanent changes in vision. However, the mechanisms behind this risk are not fully understood. Ground analog and...
Topics: NASA Technical Reports Server (NTRS), FLUID SHIFTS (BIOLOGY), EYE (ANATOMY), LONG DURATION SPACE...

NASA Network Resource and Training Site

12 12

NASA Technical Reports Server (NTRS) 20150003001: The Effects of Long Duration Bed Rest as a Spaceflight Analogue on Resting State Sensorimotor Network Functional Connectivity and Neurocognitive Performance

Nov 18, 2016 11/16

by NASA Technical Reports Server (NTRS)

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Long duration spaceflight has been associated with detrimental alterations in human sensorimotor systems and neurocognitive performance. Prolonged exposure to a head-down tilt position during long duration bed rest can resemble several effects of the microgravity environment such as reduced sensory inputs, body unloading and increased cephalic fluid distribution. The question of whether microgravity affects other central nervous system functions such as brain functional connectivity and its...
Topics: NASA Technical Reports Server (NTRS), ENVIRONMENT EFFECTS, PHYSIOLOGICAL EFFECTS, LONG DURATION...

NASA Network Resource and Training Site

8 8.0

NASA Technical Reports Server (NTRS) 20110008309: Spaceflight-Induced Intracranial Hypertension: An Overview

Nov 7, 2016 11/16

by NASA Technical Reports Server (NTRS)

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This slide presentation is an overview of the some of the known results of spaceflight induced intracranial hypertension. Historical information from Gemini 5, Apollo, and the space shuttle programs indicated that some vision impairment was reported and a comparison between these historical missions and present missions is included. Optic Disc Edema, Globe Flattening, Choroidal Folds, Hyperopic Shifts and Raised Intracranial Pressure has occurred in Astronauts During and After Long Duration...
Topics: NASA Technical Reports Server (NTRS), ASTRONAUTS, HYPERTENSION, INTRACRANIAL PRESSURE, LONG...

NASA Network Resource and Training Site

5 5.0

NASA Technical Reports Server (NTRS) 20140010483: Optic Nerve Sheath Mechanics and Permeability in VIIP Syndrome

Nov 16, 2016 11/16

by NASA Technical Reports Server (NTRS)

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Long-duration space flight carries the risk of developing Visual Impairment and Intracranial Pressure (VIIP) syndrome, a spectrum of ophthalmic changes including posterior globe flattening, choroidal folds, distension of the optic nerve sheath (ONS), optic nerve kinking and potentially permanent degradation of visual function. The slow onset of VIIP, its chronic nature, and certain clinical features strongly suggest that biomechanical factors acting on the ONS play a role in VIIP. Here we...
Topics: NASA Technical Reports Server (NTRS), OPHTHALMOLOGY, EYE (ANATOMY), INTRACRANIAL PRESSURE,...

NASA Network Resource and Training Site

7 7.0

NASA Technical Reports Server (NTRS) 19940012617: Evaluation of putative neurochemical intermediaries in space/motion sickness

Sep 27, 2016 09/16

by NASA Technical Reports Server (NTRS)

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The topics covered include the following: the emetic stimuli used on the cats in the study; analysis of the constituents of the cerebral spinal fluid (CSF) during motion sickness; evaluation of serotonin-1A agonists; other 5-HT receptors; and additional studies and activities.
Topics: NASA Technical Reports Server (NTRS), AEROSPACE MEDICINE, CATS, CEREBROSPINAL FLUID, CHEMOTHERAPY,...

NASA Network Resource and Training Site

5 5.0

NASA Technical Reports Server (NTRS) 20110005468: CO2 Effects in Space: Relationship to Intracranial Hypertension

Nov 8, 2016 11/16

by NASA Technical Reports Server (NTRS)

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This slide presentation reviews the effects of enhanced exposure to CO2 on Earth and in space. The effects of enhanced exposure to CO2 are experienced in almost all bodily systems. In space some of the effects are heightened due to the fluid shifts to the thorax and head. This fluid shift results in increased intracranial pressure, congested cerebral circulation, increased Cerebral Blood Flow (CBF) and Intravenous dilatation. The mechanism of the effect of CO2 on CBF is diagrammed, as is the...
Topics: NASA Technical Reports Server (NTRS), BRAIN CIRCULATION, CARBON DIOXIDE, FLUID SHIFTS (BIOLOGY),...

NASA Network Resource and Training Site

6 6.0

NASA Technical Reports Server (NTRS) 20150004100: VIIP: Central Nervous System (CNS) Modeling

Nov 18, 2016 11/16

by NASA Technical Reports Server (NTRS)

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Current long-duration missions to the International Space Station and future exploration-class missions beyond low-Earth orbit expose astronauts to increased risk of Visual Impairment and Intracranial Pressure (VIIP) syndrome. It has been hypothesized that the headward shift of cerebrospinal fluid (CSF) and blood in microgravity may cause significant elevation of intracranial pressure (ICP), which in turn may then induce VIIP syndrome through interaction with various biomechanical pathways....
Topics: NASA Technical Reports Server (NTRS), AEROSPACE MEDICINE, CENTRAL NERVOUS SYSTEM, INTRACRANIAL...

NASA Network Resource and Training Site

4 4.0

NASA Technical Reports Server (NTRS) 20150001895: Analyses of Magnetic Resonance Imaging of Cerebrospinal Fluid Dynamics Pre and Post Short and Long-Duration Space Flights

Nov 18, 2016 11/16

by NASA Technical Reports Server (NTRS)

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Preliminary results are based on analyses of data from 17 crewmembers. The initial analysis compares pre to post-flight changes in total cerebral blood flow (CBF) and craniospinal CSF flow volume. Total CBF is obtained by summation of the mean flow rates through the 4 blood vessels supplying the brain (right and left internal carotid and vertebral arteries). Volumetric flow rates were obtained using an automated lumen segmentation technique shown to have 3-4-fold improved reproducibility and...
Topics: NASA Technical Reports Server (NTRS), MAGNETIC RESONANCE, IMAGING TECHNIQUES, CEREBROSPINAL FLUID,...

Algorithmic Music-Sound Frequency Mixes

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Resonant_Therapy-Molecular_Biology_26

Apr 9, 2017 04/17

by ok33

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Most of the sound frequencies used in these recordings correspond either to the molar mass or equivalent scalar octave of the related products. This work is dedicated to the public domain and may be reproduced without authorization. http://resonant-therapy.webs.com Algorithmic piano music mixed with sound frequencies. Public Domain * Allergic Rhinitis, also known as hay fever, is related to keratoconjunctivitis and atopy, and has symptoms including history of seasonal allergies, conjunctival...
Topics: Genetic Superpathways-Bone Deterioration, Genetic Superpathways-Bone Remodeling, Genetic...

NASA Technical Documents

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Application of fiber-reinforced bismaleimide materials to aircraft nacelle structures

May 22, 2011 05/11

by Peros, Vasilios; Ruth, John; Trawinski, Davi

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Existing aircraft engine nacelle structures employ advanced composite materials to reduce weight and thereby increase overall performance. Use of advanced composite materials on existing aircraft nacelle structures includes fiber-reinforced epoxy structures and has typically been limited to regions furthest away from the hot engine core. Portions of the nacelle structure that are closer to the engine require materials with a higher temperature capability. In these portions, existing nacelle...
Topics: HUMAN BODY, INTRACRANIAL PRESSURE, PRESSURE MEASUREMENT, CALIBRATING, CEREBROSPINAL FLUID, PRESSURE...

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